1986S United States US Liberty Commemorative Proof Silver Dollar & Clad Half Dollar with Mint Box & COA. This modern United States commemorative coin set comes with original U.S. Mint issued presentation case and box and certificate of authenticity. This two coin set was issued by the United States Mint in 1986 to raise funds and awareness for the restoration of the Statue of Liberty and Ellis Island. This Proof Clad Half Dollar was minted at the Philadelphia Mint as was the Proof Silver Dollar which was struck from 26.73 grams of .900 silver.